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Tool Library Best Practice Guidelines – Evaluation Checklist (opens new tab)

Tool Information: Keenoa

Full Nutrient Prospective 3 Days Food Diary Estimated No


Keenoa is a smartphone image-based dietary assessment app that recognizes and identifies food items using artificial intelligence and permits real-time editing of food journals. This tool was designed for adults who owned a smartphone and would be able to download the Keenoa app without assistancehas, and this tool has been validated by a 3-day food diary.

Contact Information info


Tool Website

Special Considerations

The Keenoa App is sent by the researcher via email to the participants, who then download the app on their smartphones.And the Canadian version of the app is available in English and French.

Last Updated info


Software Required

Android or Apple

Training Required


Instructions on use

Instructions on how to use the dietary assessment tool can be found in the publications.

Administration Method


Data Analysis

Instructions on how the dietary data was analysed can be found in the publications.

Author Year Comparator Lifestage Sex Number of Nutrients Validated Mean Difference Variance Measured info Correlation Coefficients Percentage Agreement Limits of Agreement Special Considerations Action
Ji 2020 3-day food diary Adults and Elderly Both 18 Adults (>18 years of age) who owned a smartphone (Android or Apple) and would be able to download the Keenoa app without assistance.